1. Overview & Product:

️· Product: SFH 303 FA Phototransistor
️· Manufacturer: OSRAM Opto Semiconductors GmbH
️· Purpose: This document provides detailed technical information, specifications, and characteristics of the SFH 303 FA phototransistor. Notably, the document states that phototransistors are grouped and identified by Arabic numerals, implying different grades or variations within the product line.

2. Key Technical Specifications & Characteristics:

2.1 Electrical Characteristics:

️· Spectral Sensitivity:
- Wavelength of max. sensitivity (λS max): 990 nm
- Spectral range (S = 10% of Smax): 750 - 1120 nm
️· Radiant Sensitive Area: 0.11 mm²
️· Chip Dimensions: 0.5 mm x 0.5 mm
️· Half Angle: ±20 degrees
️· Photocurrent of collector-base photodiode: 4.0 µA (at Ee = 0.5 mW/cm², Vcb = 5 V)
️· Capacitances:
- Cce: 7.5 pF (Vce = 0 V, f = 1 MHz, E = 0)
- Ccb: 14 pF (Vcb = 0 V, f = 1 MHz, E = 0)
- Ceb: 19 pF (Veb = 0 V, f = 1 MHz, E = 0)
️· Dark Current (Iceo): ≤ 50 nA (Vceo = 20V, E = 0)
️· Collector-Emitter Saturation Voltage (Vcesat): 150 mV (threefold saturated)

2.2 Environmental/Mechanical

️· Total Power Dissipation (Ptot): 200 mW (at Ta = 25°C)
️· Thermal Resistance (RthJA): 375 K/W

3. Performance Variations (Implied by Grouping)

The document presents characteristics broken down into four categories ("-2", "-3", "-4"), likely representing performance grades or versions of the phototransistor.

️· Photocurrent (Ipc): The photocurrent values vary, indicating different levels of light sensitivity. For example:
- "-2": 1.0 … 2.0 mA
- "-3": 1.6 … 3.2 mA
- "-4": ≥ 2.5 mA
️· Rise/Fall Time: These timing characteristics also vary across the different groups.

4. Key Diagrams & Visuals:

️· Relative Spectral Sensitivity Graph: Illustrates the phototransistor’s sensitivity to different wavelengths of light.
️· Directional Characteristics Graph: Depicts the angular dependence of sensitivity.
️· Package Outlines Drawing: Shows the physical dimensions and layout of the phototransistor package.

5. Important Notes & Warnings:

️· Quality Assurance: The information is provided for reference only and doesn't guarantee assured characteristics.
️· Life Support Systems: This phototransistor is *not* intended for use in life-support systems unless explicitly approved by OSRAM.
️· Recycling: OSRAM encourages responsible recycling of packaging materials.